Solve the Problem $\sqrt { 2 }$ C) $\frac { \sqrt { 2 } } { 2 }$

Multiple Choice

Solve the problem.
-Let angle POQ be designated ϴ. Angles PQR and VRQ are right angles. If ϴ = 45°, find the exact length of US.

A) 0
B) $\sqrt { 2 }$
C) $\frac { \sqrt { 2 } } { 2 }$
D) 1